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Thread started 23 Dec 2011 (Friday) 15:42
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Film Scanning - finding the dynamic range

 
Gel
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Dec 23, 2011 15:42 |  #1

I dabbled a bit in film a few months ago and now that things are a bit quieter I can devote some more time to it.

I've something to ask though. Film has a lot more dynamic range than digital...but...I'm used to RAW.

So when I scan I have TIFF files, which aren't RAW files.

Is the additional dynamic range present in the TIFF file or do I need to do the tweaking before I scan?

Thanks!


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René ­ Damkot
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Dec 24, 2011 08:27 |  #2

If you scan the film to preserve all tonalities between black and white, all will be there.

Your scanner might have a hard time capturing all detail in the densest part of the negative / slide though…


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gjl711
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Dec 24, 2011 08:31 |  #3

Gel wrote in post #13591160 (external link)
I dabbled a bit in film a few months ago and now that things are a bit quieter I can devote some more time to it.

I've something to ask though. Film has a lot more dynamic range than digital...but...I'm used to RAW.

So when I scan I have TIFF files, which aren't RAW files.

Is the additional dynamic range present in the TIFF file or do I need to do the tweaking before I scan?

Thanks!

Canon's raw file is in essence a modified tiff. If you scan and output as a 16 bit tiff, you have all the dynamic range of a raw file.


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René ­ Damkot
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Dec 24, 2011 08:36 |  #4

… as long as you're not clipping whites or blacks in raw conversion ;)


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Dec 24, 2011 08:55 |  #5

gjl711 wrote in post #13593613 (external link)
Canon's raw file is in essence a modified tiff. If you scan and output as a 16 bit tiff, you have all the dynamic range of a raw file.

With one difference. RAWs are in linear space, tifs generally are not (unless exported from a converter like DPP that lets you skip the gamma correction step). WB, for instance, is best done to linear data.


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tzalman
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Dec 24, 2011 08:57 |  #6

Gel wrote in post #13591160 (external link)
Is the additional dynamic range present in the TIFF file or do I need to do the tweaking before I scan?

How do you tweak a negative?


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Gel
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Dec 24, 2011 09:10 |  #7

tzalman wrote in post #13593696 (external link)
How do you tweak a negative?

As in setting certain parameters before I scan the negative.

I used the Epson V700 a few months back, put it away and am digging it out again. The software that's with it has a huge amount of settings.


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tzalman
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Dec 24, 2011 09:31 |  #8

Oh, right, I understand now. What the software does is done after the physical scan. Aside from WB and the application of a film profile (if the Epson software allows you to choose one) it's pretty much a matter of convenience if you do the editing in the Epson s/w or in another editor.


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Gel
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Dec 24, 2011 09:35 |  #9

Ok cool, I'm just concerned that I'll be operating in such a way that I'll lose the benefits of shooting film in the first instance. It was never something I learnt with so is a very big black hole of info to me.


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Film Scanning - finding the dynamic range
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